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If your truck is a 2013 or newer diesel with a GVWR over 14,000 pounds, it’s subject to California’s Clean Truck Check program and if you’re operating anywhere on the US-101 corridor through Calabasas, that applies whether your truck is registered here or in Ventura County or anywhere else in the state. Non-compliance means fines of up to $10,000 per vehicle per day, DMV registration holds, and the real possibility of being pulled off the road mid-job.
For the business owners and operators running trucks through the Calabasas area whether you’re hauling equipment to a hillside construction site, managing deliveries along Agoura Road, or maintaining the grounds at one of the gated communities off Mulholland Highway downtime isn’t abstract. It’s money. A registration hold on a truck that’s supposed to be on a job site tomorrow is a real problem, and it’s one that’s entirely avoidable.
Getting compliant is straightforward when the process doesn’t require you to leave your yard. We come to your truck, perform the OBD data download using CARB-certified equipment, and submit your results directly to CARB’s CTC-VIS database. Within 3 to 5 business days, your DMV records reflect compliance. No portal logins. No paperwork on your end. Done.
We’re a CARB-credentialed, mobile Clean Truck Check testing company serving Los Angeles County including the western corridor from the San Fernando Valley through Calabasas and out toward the Conejo Valley. We focus exclusively on heavy-duty OBD testing for 2013 and newer trucks over 14,000 pounds GVWR. That’s it. No passenger cars, no light-duty smog checks just the specific test your truck actually needs under California’s HD I/M program.
You can verify our credentials directly on CARB’s publicly available tester list at arb.ca.gov before you book. That transparency matters in a market where new providers are appearing constantly and not all of them are using CARB-certified equipment. A test performed with an uncertified device doesn’t count your truck is still non-compliant, and you’ve paid for nothing.
We use only CARB Executive Order-approved OBD devices and submit every test result directly to CARB’s CTC-VIS system. If you’re running trucks out of the Agoura Road corridor or managing a fleet tied to the construction activity happening across the Calabasas hills, you need a tester who actually knows this program not someone who learned about it last month.
The process starts when you reach out and tell us where your truck is located. We schedule a time that works around your operation whether that’s a fleet yard off Agoura Road, a construction staging area in the Calabasas hills, or a service lot anywhere in western Los Angeles County. We come to you. Your truck doesn’t move unless it’s heading to a job.
When we arrive, we connect our CARB-certified OBD device directly to your truck’s ECU and perform the data download required under California’s Clean Truck Check program. The scan reads your engine’s onboard diagnostic data and checks for fault codes, readiness monitors, and emissions-related system status all of it transmitted from your truck’s own computer. For 2013 and newer diesel trucks over 14,000 pounds GVWR, this is the required test. There’s no tailpipe probe, no visual inspection guesswork it’s a direct data pull from the source.
Once the test is complete, we submit your results electronically and directly to CARB’s CTC-VIS database. You don’t log into a portal. You don’t upload anything. Within 3 to 5 business days, your truck’s VIN shows as compliant in CARB’s records, which feed nightly to the DMV. If you received a Notice to Submit to Testing and have a 30-day window to respond, that clock is running and this process is fast enough to meet it.
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California’s Clean Truck Check program formally the Heavy-Duty Inspection and Maintenance (HD I/M) Program requires semi-annual OBD testing for diesel trucks that are model year 2013 or newer with a GVWR over 14,000 pounds. That frequency increases to quarterly testing starting October 1, 2027. If you’re managing even a small fleet of construction trucks, delivery vehicles, or service rigs in the Calabasas area, that shift from two tests per year to four is worth planning for now not scrambling for later.
Every test we perform includes the full OBD data download using CARB-certified equipment, direct electronic submission to CARB’s CTC-VIS system, and confirmation that your results are in the database. The annual CARB compliance fee is $31.18 per vehicle for 2025, separate from the cost of the test itself. You can also submit a test up to 90 days before your compliance deadline, which means proactive operators in Calabasas can schedule testing on their own timeline rather than reacting to a notice or a registration hold.
The program applies to any qualifying heavy-duty vehicle operating on California public roads including trucks registered outside the state. If you’re running a truck that regularly travels US-101 through Calabasas, it needs to be compliant regardless of where it’s registered. Calabasas and the surrounding corridor sit within a named CARB and National Weather Service air quality monitoring zone, and enforcement in this region is active. Getting ahead of your testing schedule is the simplest way to keep your trucks working.
Yes and this is one of the most common points of confusion for operators running trucks through the Calabasas corridor. Clean Truck Check applies to any qualifying heavy-duty vehicle that operates on California public roads, regardless of where it’s registered. If your truck is a 2013 or newer diesel with a GVWR over 14,000 pounds and it drives on US-101 through Calabasas, it’s subject to the program. Registration state doesn’t exempt you.
We enforce compliance based on vehicle operation in California, not registration location. That means Ventura County-registered trucks, out-of-state commercial vehicles, and any qualifying truck that regularly transits the 101 corridor all need to be in the CTC-VIS system with a current passing test on record. If you’re not sure whether your vehicle qualifies, the two factors that matter are model year 2013 or newer and GVWR over 14,000 pounds. If both apply, you need to be compliant.
Right now, OBD-equipped heavy-duty diesel trucks model year 2013 and newer, GVWR over 14,000 pounds are required to test twice per year under California’s Clean Truck Check program. That’s the current semi-annual requirement. Starting October 1, 2027, that frequency increases to quarterly, meaning four tests per year for every qualifying vehicle in your fleet.
For operators in the Calabasas area managing multiple trucks whether for construction, landscaping, or deliveries that shift from two tests a year to four is significant. It’s worth establishing a testing process now, before the frequency change makes it more complicated. We can help you build testing into your regular fleet maintenance schedule rather than treating it as a fire drill every time a deadline approaches.
A failed OBD test means your truck has active fault codes or unresolved emissions-related issues flagged by its own onboard diagnostic system. The test result gets submitted to CARB’s CTC-VIS database regardless of whether it passes or fails and a failing result means your truck is non-compliant until a passing test is on record. That can trigger a DMV registration hold, and depending on the circumstances, it can also result in enforcement action.
The path forward after a failure is to address the underlying mechanical issue whatever the fault codes indicate and then retest once repairs are complete. For construction operators or fleet managers in Calabasas running trucks on active job sites, this is where the 30-day NST window becomes critical. If CARB has issued a Notice to Submit to Testing and your truck fails, you’ll need to complete repairs and retest within that window. We can return for a retest without requiring you to haul the vehicle to a facility, which makes that timeline manageable.
A Notice to Submit to Testing means CARB has flagged your vehicle as a potential high emitter and is requiring you to submit a passing Clean Truck Check test within 30 calendar days. That clock starts from the date on the notice not from when you open it or decide to act on it. Thirty days sounds like enough time, but if you’re in the middle of a project in the Calabasas hills or running a tight delivery schedule, it disappears fast.
The first step is confirming your truck qualifies for OBD testing model year 2013 or newer, GVWR over 14,000 pounds. If it does, you need a CARB-credentialed tester using certified equipment to perform the OBD scan and submit results directly to CARB’s CTC-VIS system. We’re mobile, which means we come to your truck’s location in the Calabasas area and handle the submission on your behalf. If the truck has a mechanical issue that’s causing a failure, you’ll need to address that first but the sooner you start, the more of that 30-day window you have left to work with.
After we submit your test results directly to CARB’s CTC-VIS database, it typically takes 3 to 5 business days for your truck’s compliance status to update in DMV records. CARB’s system transmits data to the DMV nightly, so the update happens in batches rather than instantly. During that window, your test is on record in CARB’s system the DMV side just hasn’t caught up yet.
For operators in Calabasas managing a registration renewal or dealing with an active DMV hold, that 3 to 5 day window is worth factoring into your timeline. If your registration deadline is tomorrow, a test today will get you compliant in CARB’s system quickly, but the DMV record may lag slightly. The cleanest approach is to test well ahead of any deadline CARB allows submissions up to 90 days before a compliance date, which gives you plenty of runway to avoid any timing issues between the test, the database update, and your registration renewal.
It depends on the specific truck, but for most modern construction equipment haulers, dump trucks, and flatbeds operating in the Calabasas area yes, it likely applies. The two qualifying factors are model year 2013 or newer and a GVWR over 14,000 pounds. Most heavy-duty construction trucks used in active residential and commercial development projects meet both thresholds easily.
Calabasas has ongoing development activity, including projects along the Agoura Road corridor and in the surrounding hillside communities. Construction trucks operating on those job sites and traveling on California public roads including US-101 are subject to Clean Truck Check requirements just like any other qualifying commercial vehicle. If you’re a contractor or subcontractor running trucks in this area and you’re not sure whether your vehicles are enrolled in CARB’s CTC-VIS system, the safest move is to check your VIN against CARB’s database and confirm your compliance status before a notice or registration hold forces the issue.
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